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Ningbo Bonwin Magnet Co., Ltd.
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Sintering NdFeB hole
| Payment Terms: | T/T |
| Place of Origin: | Zhejiang, China (Mainland) |
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Product Detail
Sintering NdFeB hole They are of great quality, with the stable high , high performance motors, DC motors, magnetic separator, magnetic resonance
Sintering NdFeB hole
Magnets sintered , Material Grade: N33, N35, N38, N40, N42, N45, N48, 33H, 35H, 38H, 40H, 42H,33SH, 35SH, 38SH,40S
1) Application: Toys, Switchboard, Phone, voice coil motors (VCM) in hard disk drives, high performance motors, DC motors, magnetic separator, magnetic resonance imaging, sensors, loudspeakers, Magnetic Door catcher, etc. Magnets sintered , Material Grade: N33, N35, N38, N40, N42, N45, N48, 33H, 35H, 38H, 40H, 42H,33SH, 35SH, 38SH,40S
2) The coating of NdFeB magnet can be Zn, Ni, Ni-Cu-Ni, Epoxy.
3) Maximum working temperature:
N35,N38,N40,N42,N45,N48,N50,N52(Max.operational temperature: 80c)
N33SH,N35SH,N38SH,N40SH,N42SH(Max.operational temperature:150c)
N28UH,N30UH,N33UH,N35UH,N38UH(Max.operational temperature:up to 180c)
N28EH,N30EH,N33EH,N35EH(Max.operational temperature:up to 200c)
N30AH,N33AH,N35AH(Max.operational temperature:up to 230c)
Sintering NdFeB holeKey Benefits
• The strongest magnets in the world. They can lift up to 1000 times their own weight.
• Far better permanent magnetic performance compared with traditional magnets, but the price is relatively low. (by weight about 20times Ferrite magnet, by dollars per BHmax about 1.5 times Ferrite magnet)
• Wide range of grades with new ones regularly being developed.
• Available from very small sizes to large blocks.
• Relatively easy to machine, compare to AlNiCo and Smco magnets
• High resistance to demagnetization.
• Far better permanent magnetic performance compared with traditional magnets, but the price is relatively low. (by weight about 20times Ferrite magnet, by dollars per BHmax about 1.5 times Ferrite magnet)
• Wide range of grades with new ones regularly being developed.
• Available from very small sizes to large blocks.
• Relatively easy to machine, compare to AlNiCo and Smco magnets
• High resistance to demagnetization.
Key Challenge
• Brittle and hard.
• Properties deteriorate rapidly at temperatures in excess of about 1500C (depending on grade and permeance coefficient magnet is operating at) The highest working temperature can be 2300C (AH grade L-T Series).
• Need to be protected against oxidation—by coating or plating the magnets.
• Properties deteriorate rapidly at temperatures in excess of about 1500C (depending on grade and permeance coefficient magnet is operating at) The highest working temperature can be 2300C (AH grade L-T Series).
• Need to be protected against oxidation—by coating or plating the magnets.
Quick Facts
Density: 7.6g/cm3
Saturation magnetizing field required: about 25KOe
Shape Available: blocks, bars, discs, rings, arc segments, etc.
Grade Available:N35 to N53,N,M,H,SH,UH,EH, AH series
Size: the largest can be 150mmx150mmx50mm, the smallest can be 2.00mmx1.50mmx0.50mm for the block shape.
Machine: Neodymium magnets should be machined by grinding using diamond wheels. However, of the hard magnets materials, neo magnets are the least difficult to machine.
Saturation magnetizing field required: about 25KOe
Shape Available: blocks, bars, discs, rings, arc segments, etc.
Grade Available:N35 to N53,N,M,H,SH,UH,EH, AH series
Size: the largest can be 150mmx150mmx50mm, the smallest can be 2.00mmx1.50mmx0.50mm for the block shape.
Machine: Neodymium magnets should be machined by grinding using diamond wheels. However, of the hard magnets materials, neo magnets are the least difficult to machine.
| Grade | Max. Energy Product | Remanence | Coercive Force | Rev. Temp. Coeff. | Curie Temp. | Working Temp. | ||||||
| (BH)max | Br | Hc | Hci | Bd | Hd | Tc | Tw | |||||
| MGOe | kJ/m3 | kG | mT | kOe | kA/m | kOe | kA/m | %/oC | %/oC | oC | oC | |
| N33 | 31-33 | 247-263 | 11.30-11.70 | 1130-1170 | >10.5 | >836 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N35 | 33-36 | 263-287 | 11.70-12.10 | 1170-1210 | >10.9 | >868 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N38 | 36-39 | 287-310 | 12.10-12.50 | 1210-1250 | >11.3 | >899 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N40 | 38-41 | 302-326 | 12.50-12.80 | 1250-1280 | >11.6 | >923 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N42 | 40-43 | 318-342 | 12.80-1320 | 1280-1320 | >11.6 | >923 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N45 | 43-46 | 342-366 | 13.20-13.80 | 1320-1380 | >11.0 | >876 | >12 | >955 | -0.12 | -0.60 | 310 | 80 |
| N48 | 46-49 | 366-390 | 13.80-14.20 | 1380-1420 | >10.5 | >835 | >11 | >876 | -0.12 | -0.60 | 310 | 80 |
| N30M | 28-32 | 223-255 | 10.90-11.70 | 1090-1170 | >10.2 | >812 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N33M | 31-35 | 247-279 | 11.40-12.20 | 1140-1220 | >10.7 | >851 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N35M | 33-37 | 263-294 | 11.80-12.50 | 1180-1250 | >11.0 | >875 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N38M | 36-40 | 286-318 | 12.30-13.00 | 1230-1300 | >11.5 | >915 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N40M | 38-42 | 302-334 | 12.60-13.20 | 1260-1320 | >11.8 | >939 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N42M | 40-44 | 318-350 | 13.00-13.50 | 1300-1350 | >12.0 | >955 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N45M | 42-46 | 334-366 | 13.20-13.80 | 1320-1380 | >12.2 | >971 | >14 | >1114 | -0.12 | -0.59 | 320 | 100 |
| N33H | 31-34 | 247-271 | 11.30-11.70 | 1130-1170 | >10.5 | >836 | >17 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
| N35H | 33-36 | 263-287 | 11.70-12.10 | 1170-1210 | >10.9 | >868 | >17 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
| N38H | 36-39 | 287-310 | 12.10-12.50 | 1210-1250 | >11.3 | >899 | >17 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
| N40H | 38-41 | 302-326 | 12.40-12.80 | 1240-1280 | >11.6 | >923 | >17 | >1353 | -0.11 | -0.58 | 320-350 | 120 |
| N42H | 40-43 | 318-342 | 12.80-13.20 | 1280-1320 | >12.0 | >955 | >17 | >1360 | -0.11 | -0.58 | 320-350 | 120 |
| N33SH | 31-34 | 247-272 | 11.30-11.70 | 1130-1170 | >10.6 | >844 | >20 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
| N35SH | 33-36 | 263-287 | 11.70-12.10 | 1170-1210 | >11.0 | >876 | >20 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
| N38SH | 36-39 | 287-310 | 12.10-12.50 | 1210-1250 | >11.4 | >907 | >20 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
| N40SH | 38-41 | 302-326 | 12.10-12.80 | 1240-1280 | >11.8 | >939 | >20 | >1592 | -0.11 | -0.55 | 340-360 | 150 |
| N28UH | 26-29 | 207-231 | 10.20-10.80 | 1020-1080 | >9.6 | >768 | >25 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
| N30UH | 28-31 | 223-247 | 10.80-11.30 | 1080-1130 | >10.2 | >816 | >25 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
| N33UH | 31-34 | 247-271 | 11.30-11.70 | 1130-1170 | >10.7 | >856 | >25 | >1990 | -0.11 | -0.51 | 350-380 | 180 |
| N28EH | 26-29 | 211-236 | 10.40-10.90 | 1040-1090 | >9.8 | >784 | >30 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
| N30EH | 28-31 | 223-247 | 10.80-11.30 | 1080-1130 | >10.2 | >812 | >30 | >2388 | -0.11 | -0.51 | 350-380 | 200 |
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Company Info
Ningbo Bonwin Magnet Co., Ltd. [China (Mainland)]
Business Type:Manufacturer, Trading Company
City: Ningbo
Province/State: Zhejiang
Country/Region: China (Mainland)
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